Caramelized Onion Jam

Directions

1. 1
   In a large pot, heat the olive oil until shimmering.
2. 2
   Add the onions and cook over moderately high heat, stirring occasionally, until golden brown, about 15 minutes.
3. 3
   Tie the parsley, bay leaves and rosemary together with kitchen twine.
4. 4
   Add the herb bundle to the diced onions and cook over low heat, stirring a few times, until fragrant, about 3 minutes.
5. 5
   Sprinkle the sugar over the onions and cook, without stirring, until the sugar melts, about 5 minutes.
6. 6
   Increase the heat to high and cook, without stirring, until an amber-brown caramel forms, about 6 minutes.
7. 7
   Stir in the white balsamic vinegar and simmer over low heat, stirring a few times, until the jam is thick, about 5 minutes.
8. 8
   Discard the herb bundle.
9. 9
   Season the jam with salt and let cool to warm.